19618962226 has 16 divisors (see below), whose sum is σ = 29820349440. Its totient is φ = 9679007520.

The previous prime is 19618962199. The next prime is 19618962229. The reversal of 19618962226 is 62226981691.

It is not an unprimeable number, because it can be changed into a prime (19618962229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207966 + ... + 287206.

It is an arithmetic number, because the mean of its divisors is an integer number (1863771840).

Almost surely, 2^19618962226 is an apocalyptic number.

19618962226 is a deficient number, since it is larger than the sum of its proper divisors (10201387214).

19618962226 is a wasteful number, since it uses less digits than its factorization.

19618962226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80889.

The product of its digits is 1119744, while the sum is 52.

The spelling of 19618962226 in words is "nineteen billion, six hundred eighteen million, nine hundred sixty-two thousand, two hundred twenty-six".